The board? All white men. The investors? All men. The executive officers? All men but for the general counsel, Vijaya Gadde, who has had the job for five weeks.

The story goes on to suggest that Twitter and other Silicon Valley tech companies are “unwelcoming to women.” It also includes comments from Vivek Wadhwa of Stanford’s corporate governance program, who’s quoted as saying: “It’s the same male chauvinistic thinking. The fact that they went to the IPO without a single woman on the board, how dare they?”

Costolo’s explanation went on from there, featuring commentator Anil Dash and Wadhwa himself. Costolo makes the point that it’s not just a matter of checking a box—the issue is much more complex than that:

.@dickc No Dick, it isn't about checking a box and you didn't do enough. You have a social responsiblity. You have to lead--not make excuses

AllThingsDreports that “the company has placed a top priority on adding a woman to the current all-male roster, according to sources close to the situation, as well as hiring a search firm to gin up names of candidates.”